You'll want to set up camp down the stairs from the event room and clear the entire area of trash mobs (the Unstable Creation isn't active yet, so you can pull around it).

Summary

- Activate the event by standing within melee range of the Unstable Creation.
- Keep the ore carriers rooted, snared, and/or mezzed away from the resource pools.
- Fight off the resource guardians.
- After 10 minutes, the Unstable Creation goes live.
- Kill the Unstable Creation while killing off its numerous adds.

Triggering the Event

Several people need to stand on the Unstable Creation to start the event. You'll have to stand there for a minute or two before it starts.

You'll see this unfold (NOTE: mobs start spawning after the first emote here):

An overseer shouts, 'They've gotten through the guards! We need to activate the creature!'

An overseer shouts, 'It's not moving! What happened?'

a resource guardian says 'The Master's creations must be preserved!'

A technician shouts, 'It needs time to power up! It's low on resources!'

An overseer shouts, 'Carriers! Return your resources to the pools at once! Guardians! Protect the resources!'

An overseer shouts, 'Overload the vats if you have to, but get those resources back to the creature NOW!'

An overseer shouts, '...And double-check your destination! Anyone who cancels out a reaction answers to me!'

A technician shouts, 'If we overload a resource we're going to weaken the creature! It'll be locked in to using that power!'

An overseer shouts, 'If it activates faster it's worth the risk! We need it moving now!'

The First 10 Minutes

After the event starts, dwarves called "an ore carrier" begin spawning at both doorways leading out of the room. You'll have a lot of these mobs to contain. The achievement (for bonus loot) requires that you prevent any of the resource pools from exploding. The carriers are trying to overload these pools. If they're successful, the Unstable Creation will go active and you'll lose the achievement (along with the bonus chest).

The ore carriers are susceptible to root, stun, and snare (but not mez). They can also be killed.

NOTE: If you don't care about the achievement bonus, you can let the dwarves overload the pools or do it yourself by using the ground spawns in and around the pools. Overloading the pools also makes the Unstable Creation fight a little easier (it will have less AEs).

There are four achievements for this event:- Resistance (allow no more than three resource pools to explode)
- Suppression (allow no more than two resource pools to explode)
- Crowd Control (allow no more than one resource pool to explode)
- Lockdown (don't allow any resource pools to explode)

The first time you complete the achievements for this event, you receive 5 AAs as a reward.

If you complete the event under the conditions of all its associated achievements, an additional chest ("a heavy chest") spawns.

Heart of the Underfoot Hand Axe
Heart of the Underfoot Hatchet Knife
Heart of the Underfoot War Axe
Heart of the Underfoot Battle Staff
Heart of the First Battle Staff
Knight's Heart of the First War Axe
Knight's Heart of the Underfoot Hand Axe

The Transforming Surprise of Unstable Creation currently has no use (a quest or reward involving it has yet to be implemented).